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108.1 - Alcohols and Ethers [Oxygenates] in Gasoline

SRMs 2294 through 2297 were produced in response to the U.S. EPA Final Rule on Reformulated Gas aimed at reducing the volatile organic compounds emitted from gasoline. SRMs 2294 through 2297 are certified for oxygenate, sulfur, benzene, and toluene, with reference values for olefins and aromatics. Each SRM unit is issued as a set of two sealed 20 mL ampoules.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. For specific values and uncertainties, the certificate is the only official source.


- Certified values are normal font
- Reference values are italicized
- Values in parentheses are for information only


Detail - Detail    Certificate - Certificate    Report of Investigation - Report of Investigation    MSDS - MSDS    Data Files - Data Files    Questionaire - Questionnaire


  2294 2295 2296 2297
Status   >> Now Selling Now Selling Now Selling Now Selling
Description   >> Reformulated Gasoline (Nominal Mass Fraction 11% MTBE) Reformulated Gasoline (nominal 15% MTBE) Reformulated Gasoline (Nominal Mass Fraction 13 % ETBE) Reformulated Gasoline (Nominal Mass Fraction 10% Ethanol)
  Detail Certificate MSDS Detail Certificate MSDS Detail Certificate MSDS Detail Certificate MSDS
Unit of Issue   >> 2 x 20 mL 2 x 20 mL 2 x 20 mL 2 x 20 mL

Concentration (mass fraction, in %)
Benzene 1.03 0.99 1.0 1.04
Ethanol       9.91
Methanol        
Methanol and t-Butanol        
Oxygen 2.01 2.66 2.06 3.50
Oxygenate 10.97 14.54 13.02  
Sulfur 0.00409 0.0308 0.0040 0.03037
Toulene 8.29 7.89 8.02 8.27